Evolution Lab

Nuclear reactor and power plant simulationIntroduction This is not a lesson like the others in Radioactivity and Atomic Physics Explained but it fits in well with the lesson on nuclear power. It is a very sophisticated simulation of a pressurised water reactor (PWR), which is the most common type of nuclear power reactor in the US but not in Europe, though the principles are very similar. Using the tour There is a comprehensive tour which goes through the workings of the reactor, starting from a consumer of electrical energy and working backwards to the reactor core itself. You can restart the tour at any time using the button at the top left of the screen. Hint numbers Each part of the simulation has a hint number that you can click to see a description of its function. The skill test Once you're familiar with how to use the reactor you can see whether you can control the reactor so that the power output matches the demand from the city. Back to Summary of Radioactivity and Atomic Physics Explained

The PCR Method - a DNA Copying MachineLists of Nobel Prizes and Laureates The PCR Method - a DNA Copying Machine Play the Eye of the Donkey Game About the game PCR is a method by which a few fragments of DNA can be duplicated into millions in a couple of hours. This makes PCR a very useful method in, amongst other fields, forensic science. The Nobel Prize The 1993 Nobel Prize in Chemistry was awarded for the invention of PCR, a method that made it possible to copy a large numbers of DNA fragments in only a few hours. Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services Share on email To cite this pageMLA style: "The PCR Method - a DNA Copying Machine". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Terms

Boy discovers microbe that eats plasticIt's not your average science fair when the 16-year-old winner manages to solve a global waste crisis. But such was the case at last May's Canada-Wide Science Fair in Ottawa, Ontario, where Daniel Burd, a high school student at Waterloo Collegiate Institute, presented his research on microorganisms that can rapidly biodegrade plastic. Daniel had a thought it seems even the most esteemed PhDs hadn't considered. Editor's note: There are two high school students who have discovered plastic-consuming microorganisms. Could those microorganisms be bred to do the job faster? That was Daniel's question, and he put to the test with a very simple and clever process of immersing ground plastic in a yeast solution that encourages microbial growth, and then isolating the most productive organisms. The preliminary results were encouraging, so he kept at it, selecting out the most effective strains and interbreeding them.

Observable Human CharacteristicsBastiaens, M., ter Huurne, J., Gruis, N., Bergman, W., Westendorp, R., Vermeer, B.-J. & Bouwes Bavinck, J.-N. (2001). The melanocortin-1-receptor gene is the major freckle gene. Medland, S. Ocklenburg, S., Beste, C. & Güntürkün, O. (2013). Reedy, J. Reiss, M. (1999). Sturtevant, A H. (1940). Thibaut, S., Gaillard, O., Bouhanna, P., Cannell, D. Wiedemann H-R. 1990.Teachers | Classroom Activity | Dogs and More DogsObjective To learn through an evolution card game how selective pressures can affect an organism's evolution. copy of the "From Wolf to Dog" student handout (PDF or HTML)copy of the "Examining the Game" student handout (PDF or HTML)copy of the "Wolf Deck" student handout (PDF or HTML)scissors1 die Scientists know all dogs descended from the gray wolf, but they don't know exactly how that happened. Tell students that in this activity they are going to engage in a simulation to learn how selective pressures can affect an organism's evolution. Review with students the concepts of gene, gene pool, selective pressure, mutation, species, and genetic isolation (see Activity Answer for definitions). Tell students that they will make a deck of cards that will represent the entire gene pool for a hypothetical group of genes responsible for temperament in a population of wolves. You may want to review the following terms with students: gene: A segment of DNA that codes for a particular protein.

Interactive 3D model of Solar System Planets and Night Skyvamnies on Vodpod - Videos aboutOr join with email Or Join with Email By joining, you agree to our Terms of Use and Privacy Policy. Or Sign in with email Forgot your password? Forgot your password Enter your email address and we'll send you an email with a link to reset your password. Sign in vamnies (vodpod) Top Collection vamnies's videosBiomotion LabBluePeopleLabFourni par Traduction Biology Lab The. Blue People Of Troublesome Names:Creek, KY Introduction: Hereditary methemoglobinemia (met-H) is a human genetic disease that is inherited as an autosomal recessive. The image above shows the pedigree of the "blue people" family tree indicating the phenotypes of all the individuals in the family. Your challenge is to determine the genotypes of each individual on the family tree. note: not all offspring are shown on this pedigree. If B stands for the normal gene and b for the "blue" gene, BB and Bb are normal and bb is "blue," write the genotypes for the individuals in the pedigree. 1. 4. 7. 10. Proposer une meilleure traduction

BBC Nature - Adaptations and behavioursThe TransistorLists of Nobel Prizes and Laureates The Transistor Play the Transistor Recycler Game About the game A transistor is made of a solid piece of a semiconductor material and either used as switches, to turn electronic signals on or off – or, as amplifiers. Read More » The Nobel Prize The 1956 Nobel Prize in Physics was awarded for the invention of the transistor. Readings Learn about how a transistor functions and try build a replica The Transistor in a Century of Electronics Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services7 Share on email To cite this pageMLA style: "The Transistor". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Frequently Asked Questions Terms Follow Facebook